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TZA1015T

Part Number	TZA1015T
Manufacturer	NXP
Description	Data amplifier and laser supply circuit for CD and read-only optical systems HDALAS
Published	Apr 16, 2005
Detailed Description	INTEGRATED CIRCUITS DATA SHEET TZA1015 Data amplifier and laser supply circuit for CD and read-only optical systems (H...
Datasheet	TZA1015T PDF File

Overview

INTEGRATED CIRCUITS DATA SHEET TZA1015 Data amplifier and laser supply circuit for CD and read-only optical systems (HDALAS) Product speciﬁcation Supersedes data of 1998 Sep 09 File under Integrated Circuits, IC01 1999 Aug 19 Philips Semiconductors Product speciﬁcation Data ampliﬁer and laser supply circuit for CD and read-only optical systems (HDALAS) FEATURES • Six input buffer amplifiers with low-pass filtering and virtually no offset • Universal photodiode IC interface using internal conversion resistors • RF data amplifier with wide bandwidth designed for data rates up to a maximum of 30× • Programmable RF gain for CD-A/V, CD-R, CD-R/W and CD-ROM applications • Programmable RF bandwidth for optimal playability • Radial error signal for fast track counting • Programmable RF/Fast Track Count (FTC) gain for optimal dynamic range • Fully automatic laser control including stabilization and on/off switch plus a separate supply for power efficiency • Automatic monitor diode polarity selection • Adjustable laser bandwidth and laser switch-on current slope using external capacitor • Protection circuit to prevent laser damage due to supply voltage dip • Optimized interconnection between data amplifier and Philips’ digital signal processor family (CD7, ACE and MACE) • Wide supply voltage range • Wide temperature range • Low power consumption.
GENERAL DESCRIPTION TZA1015 The TZA1015 is a data amplifier and laser supply circuit for 3-beam pick-up detectors found in a wide range of CD and read-only optical systems.
The device contains 6 transimpedance amplifiers to amplify and filter the focus and radial photo diode voltage input signals.
The preamplifier forms a versatile, programmable interface from voltage output CD mechanisms to the Philips’ digital signal processor family.
The dynamic range of this preamplifier/processor combination can be optimized for the LF servo and RF data paths.
The servo channel gain is set by the ADC range of the processor.
The RF data ch...

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TZA1015 Data amplifier and laser supply circuit for CD and read-only optical systems HDALAS - NXP
TZA1015T Data amplifier and laser supply circuit for CD and read-only optical systems HDALAS - NXP

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